Which of the following does not occur during the light-dependent reactions of photosynthesis

This question lacks options, the options are:

A. ATP synthesis

B. Oxidation of water

C. Carbon fixation

D. Electron transport

The answer is C. carbon fixation

Explanation:

Photosynthesis, which is the process whereby green plants synthesize their food (sugar) in the presence of sunlight, occurs in two major stages namely: light dependent reaction and light independent reaction. As their name implies, the former must occur in the presence of light while the latter need not occur in the presence of light.

The light dependent reaction, which occurs in the thylakoid membrane of the chloroplast, involves the synthesis of ATP and NADPH molecules needed for sugar production in the light independent stage. Generally, light photon strikes a pigment called CHLOROPHYLL making it excited to split water molecule (photolysis). The protons (H+) and electrons produced are used to synthesize ATP and NADPH respectively. Hence, the following processes occurs in the light dependent stage: ATP synthesis, Oxidation of water, Electron transport etc.

Note that, CARBON FIXATION takes place in the second stage, which is the light independent stage.

answer: c

explanation: